/*
 * Copyright (c) 2017-present, CV4J Contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.cv4j.core.spatial.conv;

import com.cv4j.core.datamodel.ImageProcessor;
import com.cv4j.core.filters.BaseFilter;

import java.util.Optional;

/**
 * 锋利的过滤器
 *
 * @author dev
 * @date 2021/07/22
 */
public class SharpFilter extends BaseFilter {
    /**
     * 内核
     */
    public static int[] kernel = new int[]{-1, -1, -1, -1, 12, -1, -1, -1, -1};

    /**
     * 做的过滤器
     *
     * @param src src
     * @return {@link Optional<ImageProcessor>}
     */
    @Override
    public Optional<ImageProcessor> doFilter(ImageProcessor src) {
        int total = width * height;
        return Optional.ofNullable(src);
    }
}
